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            <div id="ConfluenceContent"><p>A web application uses a deployment descriptor to initialize resources like servlets  and taglibs. The deployment descriptor is formatted as a XML  document and named <code>web.xml</code>. </p>

<p>Likewise, the framework uses a configuration file to initialize its own resources. These resources include:</p>

<ul><li><em>Interceptors</em> that can preprocess and postprocess a request</li><li><em>Action classes</em> that can call business logic and data access code</li><li><em>Results</em> that can prepare views, like JavaServer Pages and FreeMarker templates</li></ul>


<p>At runtime, there is a single configuration for an application. Prior to runtime, the configuration is defined through one or more XML documents, including the default <code>struts.xml</code> document. There are several elements that can be configured, including packages, namespaces, includes, actions, results, interceptors, and exceptions.</p>

<p><img class="emoticon emoticon-light-on" src="https://cwiki.apache.org/confluence/s/en_GB/5982/f2b47fb3d636c8bc9fd0b11c0ec6d0ae18646be7.1/_/images/icons/emoticons/lightbulb_on.png" data-emoticon-name="light-on" alt="(lightbulb)"> See <a shape="rect" href="strutsxml.html">struts.xml</a> for a working example.</p>

<h3 id="ConfigurationElements-AdministrativeElements">Administrative Elements</h3>

<ul><li><a shape="rect" href="bean-configuration.html">Bean Configuration</a></li><li><a shape="rect" href="constant-configuration.html">Constant Configuration</a></li><li><a shape="rect" href="package-configuration.html">Package Configuration</a></li><li><a shape="rect" href="namespace-configuration.html">Namespace Configuration</a></li><li><a shape="rect" href="include-configuration.html">Include Configuration</a></li></ul>


<h3 id="ConfigurationElements-RequestHandlingElements">Request Handling Elements</h3>

<ul><li><a shape="rect" href="interceptor-configuration.html">Interceptor Configuration</a></li><li><a shape="rect" href="action-configuration.html">Action Configuration</a>
	<ul><li><a shape="rect" href="wildcard-mappings.html">Wildcard Mappings</a> <img class="emoticon emoticon-light-on" src="https://cwiki.apache.org/confluence/s/en_GB/5982/f2b47fb3d636c8bc9fd0b11c0ec6d0ae18646be7.1/_/images/icons/emoticons/lightbulb_on.png" data-emoticon-name="light-on" alt="(lightbulb)"></li></ul>
	</li><li><a shape="rect" href="result-configuration.html">Result Configuration</a></li><li><a shape="rect" href="unknown-handlers.html">Unknown Handlers</a></li></ul>


<h3 id="ConfigurationElements-ErrorHandling">Error Handling</h3>

<ul><li><a shape="rect" href="exception-configuration.html">Exception Configuration</a></li></ul>



<h2 id="ConfigurationElements-Next:">Next: <a shape="rect" href="configuration-files.html">Configuration Files</a></h2></div>
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